Who makes the highest detergent Dino oil these days? I'm a short-haul (incomplete engine warm up) moderate to low mileage (10-12kish) light duty driver. My vehicle only demands a minimum of one oil change per year. Based on the UOAs I'm seeing around here, I'm beginning to think that my best strategy is to primarily get whatever name-brand Dino oil happens to be on sale (at the moment QS Advanced Durability) or failing that, get the highest detergent oil I can find and change twice a year. That way I'd get two fresh shots of detergent every year to battle varnish, without overpaying for durability I can't use. The wear numbers per thousand miles traveled seems pretty comparable if the change cycle is kept in bounds. Any names?